libuv在cocos2d-x中的使用

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <uv.h>
 
#define log(x) printf("%s\n", x);
 
uv_loop_t *loop;
 
void on_connect(uv_connect_t *req, int status);
void on_write_end(uv_write_t *req, int status);
uv_buf_t alloc_buffer(uv_handle_t *handle, size_t suggested_size);
void echo_read(uv_stream_t *server, ssize_t nread, uv_buf_t buf);

// サーバからのレスポンスを表示
void echo_read(uv_stream_t *server, ssize_t nread, uv_buf_t buf) {
  if (nread == -1) {
    fprintf(stderr, "error echo_read");
    return;
  }

  // 結果を buf から取得して表示
  printf("result: %s\n", buf.base);
}

// suggeseted_size で渡された領域を確保
uv_buf_t alloc_buffer(uv_handle_t *handle, size_t suggested_size) {
  // 読み込みのためのバッファを、サジェストされたサイズで確保
  return uv_buf_init((char*) malloc(suggested_size), suggested_size);
}

// サーバへデータ送信後, サーバからのレスポンスを読み込む
void on_write_end(uv_write_t *req, int status) {
  if (status == -1) {
    fprintf(stderr, "error on_write_end");
    return;
  }

  // 書き込みが終わったら、すぐに読み込みを開始
  uv_read_start(req->handle, alloc_buffer, echo_read);
}

// サーバとの接続を確立後, サーバに文字列を送信
void on_connect(uv_connect_t *req, int status) {
  if (status == -1) {
    fprintf(stderr, "error on_write_end");
    return;
  }

  // 送信メッセージを登録
  char *message = "hello.txt";
  int len = strlen(message);

  /** これだとセグフォ
   * uv_buf_t buf[1];
   * buf[0].len = len;
   * buf[0].base = message;
   */

  // 送信データ用のバッファ
  char buffer[100];
  uv_buf_t buf = uv_buf_init(buffer, sizeof(buffer));

  // 送信データを載せる
  buf.len = len;
  buf.base = message;

  // ハンドルを取得
  uv_stream_t* tcp = req->handle;

  // 書き込み用構造体
  uv_write_t write_req;
 
  int buf_count = 1;
  // 書き込み
  uv_write(&write_req, tcp, &buf, buf_count, on_write_end);
}
 
int main(void) {
  // loop 生成
  loop = uv_default_loop();

  // Network I/O の構造体
  uv_tcp_t client;

  // loop への登録
  uv_tcp_init(loop, &client);

  // アドレスの取得
  struct sockaddr_in req_addr = uv_ip4_addr("127.0.0.1", 7000);

  // TCP コネクション用の構造体
  uv_connect_t connect_req;

  // 接続
  uv_tcp_connect(&connect_req, &client, req_addr, on_connect);

  // ループを開始
  return uv_run(loop);
}

uv_getaddrinfo_t* getaddrinfo_handle = (uv_getaddrinfo_t*)malloc(sizeof(uv_getaddrinfo_t));
getaddrinfo_handle->data = this;
 
int r = uv_getaddrinfo(&loop_, getaddrinfo_handle, &AfterDNSResolved, m_strDomain.c_str(), NULL, NULL);
 
//r 返回0时表示正常，非0则说明出错了可通过 uv_err_name(r)、uv_strerror(r)获得出错信息

int main() {
    loop = uv_default_loop();

    struct addrinfo hints;
    hints.ai_family = PF_INET;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_protocol = IPPROTO_TCP;
    hints.ai_flags = 0;

    uv_getaddrinfo_t resolver;
    fprintf(stderr, "irc.freenode.net is... ");
    int r = uv_getaddrinfo(loop, &resolver, on_resolved, "irc.freenode.net", "6667", &hints);

    if (r) {
        fprintf(stderr, "getaddrinfo call error %s\n", uv_err_name(r));
        return 1;
    }
    return uv_run(loop, UV_RUN_DEFAULT);
}
   
void on_resolved(uv_getaddrinfo_t *resolver, int status, struct addrinfo *res) {
    if (status < 0) {
        fprintf(stderr, "getaddrinfo callback error %s\n", uv_err_name(status));
        return;
    }

    char addr[17] = {‘\0‘};
    uv_ip4_name((struct sockaddr_in*) res->ai_addr, addr, 16);
    fprintf(stderr, "%s\n", addr);

    uv_connect_t *connect_req = (uv_connect_t*) malloc(sizeof(uv_connect_t));
    uv_tcp_t *socket = (uv_tcp_t*) malloc(sizeof(uv_tcp_t));
    uv_tcp_init(loop, socket);

    uv_tcp_connect(connect_req, socket, (const struct sockaddr*) res->ai_addr, on_connect);

    uv_freeaddrinfo(res);
}

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)

LOCAL_MODULE := uv_static

LOCAL_MODULE_FILENAME := libuv

#LOCAL_SRC_FILES := proj.android/libuv.a
#LOCAL_EXPORT_CFLAGS := -I$(LOCAL_PATH)/include

LOCAL_SRC_FILES := \
src/fs-poll.c \
src/inet.c \
src/threadpool.c \
src/uv-common.c \
src/version.c \
src/unix/async.c \
src/unix/core.c \
src/unix/dl.c \
src/unix/fs.c \
src/unix/getaddrinfo.c \
src/unix/getnameinfo.c \
src/unix/loop.c \
src/unix/loop-watcher.c \
src/unix/pipe.c \
src/unix/poll.c \
src/unix/process.c \
src/unix/signal.c \
src/unix/stream.c \
src/unix/tcp.c \
src/unix/thread.c \
src/unix/timer.c \
src/unix/tty.c \
src/unix/udp.c \
src/unix/proctitle.c \
src/unix/linux-core.c \
src/unix/linux-inotify.c \
src/unix/linux-syscalls.c \
src/unix/pthread-fixes.c \
src/unix/android-ifaddrs.c

LOCAL_C_INCLUDES := $(LOCAL_PATH)/include \
                    $(LOCAL_PATH)/src \
                    $(LOCAL_PATH)/src/unix

LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include \
                           $(LOCAL_PATH)/src \
                           $(LOCAL_PATH)/src/unix

LOCAL_CFLAGS := \
-Wall \
-fvisibility=hidden \
-g \
--std=gnu89 \
-pedantic \
-Wall \
-Wextra \
-Wno-unused-parameter \
-Wstrict-aliasing \
-O3 \
-fstrict-aliasing \
-fomit-frame-pointer \
-fdata-sections \
-ffunction-sections

include $(BUILD_STATIC_LIBRARY)